Ossian's Hall - The Hermitage (National Trust for Scotland)

The first time you spot Ossian's Hall through the trees near Dunkeld, you'll understand why the Victorians were obsessed with theatrical follies. This National Trust for Scotland property sits above the River Tay in a ravine that feels genuinely wild, even though you're only a short walk from the car park. The hall itself is an 18th-century folly - a mock-classical retreat built for getting moody and contemplative about nature, basically.

Inside, there's a peculiar room with a hidden grotto behind a mirror, and the whole thing has that slightly bonkers energy you get from places where wealthy landowners tried to engineer romance and drama into their estates. It's not enormous - an hour covers everything properly - but the walk down and back is excellent, through genuine woodland with the river below. The setting matters more than the building itself, if you're being honest.

History enthusiasts and walkers will get the most from it. Families with young children might find the interior a bit underwhelming, though the woodland walk itself keeps most kids engaged. The real draw is the combination: Ossian's Hall plus the Hermitage grounds create one of the finest riverside walks in Perthshire, and you're well-positioned to link it with nearby caravan parks at Inver Mill Farm and Erigmore if you're basing yourself in the area. Spring and autumn are ideal - the light through the trees is properly atmospheric, and you won't be queuing.